By being protective of your child you feel you are taking care of him.But when will your child learn that the world is an evil place and not everyone loves him like his parents?

See the pleasure your child gets by pouncing on his kid brother. Teach him to be careful of strangers and not take food from anyone except family but let him learn what will happen when the bicycle falls over.It does not really matter.

Trust your child to take care of himself, only then will he actually become capable to take care of his life.

Things to let go

Let him play with sand, mud, water without your fear of his falling ill or catching an infection.
He can climb up the wall, play on swings, jump around, learn to ride a cycle
He can attend birthday parties alone, visit his friend’s house, or even join classes with his friends.

Things to be careful about

Deadlines
Weird friends or a bad friends circle.
Homework and studies.